The Collaborative International Dictionary of English v.0.48:

Newsmonger \News"mon`ger\, n.
   One who deals in news; one who is active in hearing and
   telling news.
   [1913 Webster]

WordNet (r) 3.0 (2006):

newsmonger
    n 1: a person given to gossiping and divulging personal
         information about others [syn: gossip, gossiper,
         gossipmonger, rumormonger, rumourmonger,
         newsmonger]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "newsmonger":
   a tale-bearing animal, adviser, announcer, annunciator, authority,
   busybody, channel, communicant, communicator, enlightener,
   expert witness, gossip, gossip columnist, gossiper, gossipmonger,
   grapevine, informant, information center, information medium,
   informer, interviewee, monitor, mouthpiece, newspaperman, notifier,
   press, public relations officer, publisher, quidnunc, radio,
   reporter, rumormonger, scandalmonger, source, spokesman, tabby,
   talebearer, taleteller, tattler, tattletale, television, teller,
   telltale, tipster, tittle-tattler, tout, witness, yenta